DE1491342B1 - Zylindrische Barium-Kalzium-Aluminat-Kathode fuer Magnetronroehren und Verfahren zu ihrer Herstellung - Google Patents

Zylindrische Barium-Kalzium-Aluminat-Kathode fuer Magnetronroehren und Verfahren zu ihrer Herstellung

Info

Publication number
DE1491342B1
DE1491342B1 DE19651491342 DE1491342A DE1491342B1 DE 1491342 B1 DE1491342 B1 DE 1491342B1 DE 19651491342 DE19651491342 DE 19651491342 DE 1491342 A DE1491342 A DE 1491342A DE 1491342 B1 DE1491342 B1 DE 1491342B1
Authority
DE
Germany
Prior art keywords
support parts
cathode
tungsten
cathode according
emission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19651491342
Other languages
German (de)
English (en)
Inventor
Cooper Brian Frederick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teledyne UK Ltd
Original Assignee
English Electric Valve Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by English Electric Valve Co Ltd filed Critical English Electric Valve Co Ltd
Publication of DE1491342B1 publication Critical patent/DE1491342B1/de
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/04—Cathodes
    • H01J23/05—Cathodes having a cylindrical emissive surface, e.g. cathodes for magnetrons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Powder Metallurgy (AREA)
  • Microwave Tubes (AREA)
DE19651491342 1964-05-11 1965-05-03 Zylindrische Barium-Kalzium-Aluminat-Kathode fuer Magnetronroehren und Verfahren zu ihrer Herstellung Pending DE1491342B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19505/64A GB1023598A (en) 1964-05-11 1964-05-11 Improvements in or relating to magnetron cathodes

Publications (1)

Publication Number Publication Date
DE1491342B1 true DE1491342B1 (de) 1969-11-13

Family

ID=10130478

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19651491342 Pending DE1491342B1 (de) 1964-05-11 1965-05-03 Zylindrische Barium-Kalzium-Aluminat-Kathode fuer Magnetronroehren und Verfahren zu ihrer Herstellung

Country Status (6)

Country Link
US (1) US3441781A (enExample)
CH (1) CH421312A (enExample)
DE (1) DE1491342B1 (enExample)
GB (1) GB1023598A (enExample)
NL (1) NL6505936A (enExample)
SE (1) SE320437B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0329269A1 (en) * 1988-01-20 1989-08-23 Eev Limited Cathodes for magnetrons

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501617A (en) * 1967-11-24 1970-03-17 Chicago Bridge & Iron Co Apparatus for sublimating and evaporating metals
RU2007777C1 (ru) * 1992-04-15 1994-02-15 Предприятие "Плутон" Магнетрон

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1307503A (fr) * 1961-01-23 1962-10-26 S F D Lab Procédé pour interrompre le fonctionnement d'un dispositif électronique à champs croisés
DE1212225B (de) * 1963-03-23 1966-03-10 Telefunken Patent Gluehkathode

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1891074A (en) * 1931-02-19 1932-12-13 Gen Electric Cathode for electric discharge devices
US3201639A (en) * 1955-02-09 1965-08-17 Philips Corp Thermionic dispenser cathode
US3160780A (en) * 1961-01-17 1964-12-08 Philips Corp Indirectly heated cathode
US3210575A (en) * 1961-03-07 1965-10-05 Podolsky Leon Thermoelectron engine having composite emitter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1307503A (fr) * 1961-01-23 1962-10-26 S F D Lab Procédé pour interrompre le fonctionnement d'un dispositif électronique à champs croisés
DE1212225B (de) * 1963-03-23 1966-03-10 Telefunken Patent Gluehkathode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0329269A1 (en) * 1988-01-20 1989-08-23 Eev Limited Cathodes for magnetrons

Also Published As

Publication number Publication date
NL6505936A (enExample) 1965-11-12
US3441781A (en) 1969-04-29
CH421312A (fr) 1966-09-30
GB1023598A (en) 1966-03-23
SE320437B (enExample) 1970-02-09

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